《易》「用九用六」解

An Explanation of the idea that all the Lines are Nines [Yang] and All the Lines are Sixes [Yin] in the Book of Changes

《易》之「用九，見群龍無首，吉」、「用六，利永貞」，乃乾、坤二卦所獨有，歷來釋之者夥，但言人人殊。本文即在對此作一解讀，首論用九用六之性質，次探歷代諸家之說法，末則扣緊其所繫之辭與卦爻辭以言，冀明其義於萬一。